Question

a school has 8 periods a day of 45 minutes each. if the school decides to have 9 periods a day without increasing the number of school hours how long would each period be?​

Answer 1

first we will take out the total school hours

so, 8×45=360

so, each period will be of 360÷9=40

Answer 2

Answer:

40 minutes.

Step-by-step explanation:

Initially there are 8 periods ,

SoTotal time = 45×8= 360 minutes.

Now school hours will be same .

And no. of periods = 9

Let , each period would be of t minutes.

So , 9×t = 360 min

t= 360/9

Hence , t = 40 minute.

Therefore , each period would be of 40 minutes.